ORIGINAL: little-d
is there much deferance between app and 777.I have been using 777 for a long time and have got good results,but i saw in my local gun shop they have the app now .the young guy at the store doesn't shoot either so he could not give me any advice on the app. thanks if you can help me. little-d
Yes, there is. APP is formulated to be loaded volume-for-volume the same as the black powder loads you used before. If you used 70 grains of GOEX FFg BP by volume measure, then use the same volume of FFg APP.
However, 777 is about 15% more powerful than an equal volume of black or APP, so when using 777 you need to reduce the charge by about 15%.
I have never been able to get good performace shooting patched balls with 777-the patches are ALWAYS blown! This happens regardless of how much the charge is reduced! On the other hand, one of my best .45 cal Maxiball loads is 90 grains of FFg 777.
